int fd, int do_report)
{
dVAR;
-#if defined(MACOS_TRADITIONAL) || defined(__SYMBIAN32__)
+#if defined(MACOS_TRADITIONAL) || defined(__SYMBIAN32__) || defined(__LIBCATAMOUNT__)
Perl_croak(aTHX_ "exec? I'm not *that* kind of operating system");
#else
if (sp > mark) {